{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:OQE7S4OJSSRC2SIXFUDMBOLWNN","short_pith_number":"pith:OQE7S4OJ","canonical_record":{"source":{"id":"2104.08036","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-04-16T11:14:16Z","cross_cats_sorted":[],"title_canon_sha256":"e74f16c1e0425f00ae15d9f2c4aa2033bd93fef0fc97651cee1299fcf2491481","abstract_canon_sha256":"0700f45455457a8a89a7d953f2627fdc1587723efd1166add3085b8dca63a11a"},"schema_version":"1.0"},"canonical_sha256":"7409f971c994a22d49172d06c0b9766b716c2b19d6ae415a868852a9907af98d","source":{"kind":"arxiv","id":"2104.08036","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.08036","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"arxiv_version","alias_value":"2104.08036v2","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.08036","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"pith_short_12","alias_value":"OQE7S4OJSSRC","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"pith_short_16","alias_value":"OQE7S4OJSSRC2SIX","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"pith_short_8","alias_value":"OQE7S4OJ","created_at":"2026-07-05T02:39:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:OQE7S4OJSSRC2SIXFUDMBOLWNN","target":"record","payload":{"canonical_record":{"source":{"id":"2104.08036","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-04-16T11:14:16Z","cross_cats_sorted":[],"title_canon_sha256":"e74f16c1e0425f00ae15d9f2c4aa2033bd93fef0fc97651cee1299fcf2491481","abstract_canon_sha256":"0700f45455457a8a89a7d953f2627fdc1587723efd1166add3085b8dca63a11a"},"schema_version":"1.0"},"canonical_sha256":"7409f971c994a22d49172d06c0b9766b716c2b19d6ae415a868852a9907af98d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:39:18.357122Z","signature_b64":"yMd593+pvblxx0rIthYu0o+smIVy28xqtqdPVjgJrLSaDaeCtirqREMFzSqS7NifGX4hyXgh2knE3aebSyMyCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7409f971c994a22d49172d06c0b9766b716c2b19d6ae415a868852a9907af98d","last_reissued_at":"2026-07-05T02:39:18.356700Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:39:18.356700Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.08036","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:39:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QCFRty7QCDftyhVKJjfDsI1yU/tAIlCwsTMTw5nrYFaudHK9R97eX/BntZYsf/ETa3I74hj4sFSPOgz72ExZBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T02:32:22.576458Z"},"content_sha256":"7c6aa001e3954cffe88a1992e063c5710791c7bdc482ee398a5c76596a06640d","schema_version":"1.0","event_id":"sha256:7c6aa001e3954cffe88a1992e063c5710791c7bdc482ee398a5c76596a06640d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:OQE7S4OJSSRC2SIXFUDMBOLWNN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Thiols in the ISM: first detection of HC(O)SH and confirmation of C$_2$H$_5$SH","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Bel\\'en Tercero, Fernando Rico-Villas, Izaskun Jim\\'enez-Serra, Jes\\'us Mart\\'in-Pintado, Laura Colzi, Lucas F. Rodr\\'iguez-Almeida, Miguel A. Requena-Torres, Pablo de Vicente, Sergio Mart\\'in, Shaoshan Zeng, V\\'ictor M. Rivilla","submitted_at":"2021-04-16T11:14:16Z","abstract_excerpt":"The chemical compounds carrying the thiol group (-SH) have been considered essential in recent prebiotic studies regarding the polymerization of amino acids. We have searched for this kind of compounds toward the Galactic Centre quiescent cloud G+0.693-0.027. We report the first detection in the interstellar space of the trans-isomer of monothioformic acid (t-HC(O)SH) with an abundance of $\\sim\\,$1$\\,\\times\\,$10$^{-10}$. Additionally, we provide a solid confirmation of the gauche isomer of ethyl mercaptan (g-C$_2$H$_5$SH) with an abundance of $\\sim\\,$3$\\,\\times\\,$10$^{-10}$, and we also detect"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.08036","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2104.08036/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:39:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eaPTaY08HcjJw/L63tpYDZEo5FCPIHLCbra6ScGhHDCCeFHic8Jv8jti6ZuJRkEpCAsXAgbYK+mlUm9kPiOYCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T02:32:22.576965Z"},"content_sha256":"21cbf0a8f2835eebe43d67ada213a2f63653a3054bfb1f9138a4f8ac07d5e294","schema_version":"1.0","event_id":"sha256:21cbf0a8f2835eebe43d67ada213a2f63653a3054bfb1f9138a4f8ac07d5e294"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OQE7S4OJSSRC2SIXFUDMBOLWNN/bundle.json","state_url":"https://pith.science/pith/OQE7S4OJSSRC2SIXFUDMBOLWNN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OQE7S4OJSSRC2SIXFUDMBOLWNN/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-06T02:32:22Z","links":{"resolver":"https://pith.science/pith/OQE7S4OJSSRC2SIXFUDMBOLWNN","bundle":"https://pith.science/pith/OQE7S4OJSSRC2SIXFUDMBOLWNN/bundle.json","state":"https://pith.science/pith/OQE7S4OJSSRC2SIXFUDMBOLWNN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OQE7S4OJSSRC2SIXFUDMBOLWNN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:OQE7S4OJSSRC2SIXFUDMBOLWNN","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"0700f45455457a8a89a7d953f2627fdc1587723efd1166add3085b8dca63a11a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-04-16T11:14:16Z","title_canon_sha256":"e74f16c1e0425f00ae15d9f2c4aa2033bd93fef0fc97651cee1299fcf2491481"},"schema_version":"1.0","source":{"id":"2104.08036","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.08036","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"arxiv_version","alias_value":"2104.08036v2","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.08036","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"pith_short_12","alias_value":"OQE7S4OJSSRC","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"pith_short_16","alias_value":"OQE7S4OJSSRC2SIX","created_at":"2026-07-05T02:39:18Z"},{"alias_kind":"pith_short_8","alias_value":"OQE7S4OJ","created_at":"2026-07-05T02:39:18Z"}],"graph_snapshots":[{"event_id":"sha256:21cbf0a8f2835eebe43d67ada213a2f63653a3054bfb1f9138a4f8ac07d5e294","target":"graph","created_at":"2026-07-05T02:39:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2104.08036/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The chemical compounds carrying the thiol group (-SH) have been considered essential in recent prebiotic studies regarding the polymerization of amino acids. We have searched for this kind of compounds toward the Galactic Centre quiescent cloud G+0.693-0.027. We report the first detection in the interstellar space of the trans-isomer of monothioformic acid (t-HC(O)SH) with an abundance of $\\sim\\,$1$\\,\\times\\,$10$^{-10}$. Additionally, we provide a solid confirmation of the gauche isomer of ethyl mercaptan (g-C$_2$H$_5$SH) with an abundance of $\\sim\\,$3$\\,\\times\\,$10$^{-10}$, and we also detect","authors_text":"Bel\\'en Tercero, Fernando Rico-Villas, Izaskun Jim\\'enez-Serra, Jes\\'us Mart\\'in-Pintado, Laura Colzi, Lucas F. Rodr\\'iguez-Almeida, Miguel A. Requena-Torres, Pablo de Vicente, Sergio Mart\\'in, Shaoshan Zeng, V\\'ictor M. Rivilla","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-04-16T11:14:16Z","title":"Thiols in the ISM: first detection of HC(O)SH and confirmation of C$_2$H$_5$SH"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.08036","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:7c6aa001e3954cffe88a1992e063c5710791c7bdc482ee398a5c76596a06640d","target":"record","created_at":"2026-07-05T02:39:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"0700f45455457a8a89a7d953f2627fdc1587723efd1166add3085b8dca63a11a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-04-16T11:14:16Z","title_canon_sha256":"e74f16c1e0425f00ae15d9f2c4aa2033bd93fef0fc97651cee1299fcf2491481"},"schema_version":"1.0","source":{"id":"2104.08036","kind":"arxiv","version":2}},"canonical_sha256":"7409f971c994a22d49172d06c0b9766b716c2b19d6ae415a868852a9907af98d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7409f971c994a22d49172d06c0b9766b716c2b19d6ae415a868852a9907af98d","first_computed_at":"2026-07-05T02:39:18.356700Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:39:18.356700Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yMd593+pvblxx0rIthYu0o+smIVy28xqtqdPVjgJrLSaDaeCtirqREMFzSqS7NifGX4hyXgh2knE3aebSyMyCA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:39:18.357122Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.08036","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7c6aa001e3954cffe88a1992e063c5710791c7bdc482ee398a5c76596a06640d","sha256:21cbf0a8f2835eebe43d67ada213a2f63653a3054bfb1f9138a4f8ac07d5e294"],"state_sha256":"72cf14dda43eb90fc698962139d8daa57fb674af95e1e826dd3ed1b7721a8ed0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IRFYOVPzt8m1jGG9CMg1SQdF7z72JV/6GdDvdxkYA7iOiG3zDJ35MphPWH6tfqBVA/BcqOBSZS09+0Y/Fpm5DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T02:32:22.581862Z","bundle_sha256":"ba5905269317adc3688705b9b7adcc0287eff3e9115a8942786a58d1430eb65a"}}